package org.by.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;

import java.time.Duration;


/*
* redis缓存配置类
* */
@Configuration
public class RedisCacheConfig {

    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(){
        //创建redis缓存配置类
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        //进行redis配置
        redisCacheConfiguration.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json())) //设置redis值的序列化方式为json格式
                .entryTtl(Duration.ofDays(7)) //统一设置redis中值的默认过期时间(7天)
                .disableCachingNullValues(); //redis的value值禁止使用空值


        return redisCacheConfiguration;
    }
}
